It means you won't even need a phone to connect to 3G on your smart wrist-wear.

The GSMA has announced a new eSim Specification that will enable you to connect directly to the internet from your smartwatch without needing a phone in your pocket to bridge the gap.

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The spec is designed to add mobile devices to a single subscription, enabling them to connect directly to a network independently of your smartphone.

It’s not just limited to smartwatches either. With the new eSim onboard, fitness trackers and tablets will also get a look-in on the action. The spec is backed by the likes of Samsung, LG, and Huawei, and carriers such as AT&T, Sprint, and Verizon, so you definitely can expect mainstream devices to be taking it on.

In fact, Samsung has already announced that it’s going to pack the new eSim spec into the Gear S2 Classic, so if you’re sick of lagging behind your smartwatch-wearing friends, now might be the perfect opportunity to get a step ahead.

Of course, we’re seen programmable sim cards sneak into devices like tablets before (we’re looking at you, Apple iPad), but this is a first glimpse of a world in which we use one sim card to rule all.